Perfecting 90

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How can 90 become a perfect square? a perfect cube?

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Three Daughters

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Determine the age of each daughter.

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Multiples of 72

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What is the relationship between two divisors and their product, sum, difference, and quotient?

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Choose an Elevator

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Determine which of two elevators reaches the lobby first.

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Almost a Square

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What rectangle can you form that is close to a square?

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Blocked Off

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Determine how many blocks Jeff has.

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Save the Princess

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Help Princess Stunning find a particular perfect square number.

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Keeping Pace

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How fast do two joggers run?

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Greatest Product

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Find the greatest possible product of two natural numbers who have a particular sum.

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OOPS! I Subtracted

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You know what you get when you multiply and subtract, but what two numbers did you start with?

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